Solr does not do strict Boolean logic, although it comes close. See: https://lucidworks.com/blog/2011/12/28/why-not-and-or-and-not/
Best, Erick On Sun, Oct 25, 2015 at 11:18 PM, patel mrugesh <patelmruge...@yahoo.co.in> wrote: > Hi All, > We are using Lucene 4.10.3, one strange behavior we have observed when NOT > operator is used with parenthesis around. > It looks like NOT operator is completely ignored and whatever boolean > operator was before parenthesis is applied. > For example, document text: "lottery ticket", query: "lottery NOT ticket". As > expected, this query will not produce a match for this document. However, if > this query is slightly modified and converted to "lottery (NOT ticket)" or > "lottery AND (NOT ticket)" then match is produced. It behaves as if query > becomes "lottery AND ticket" instead, completely ignoring NOT. > Please somebody can shed light on this? > Thanks,Mrugesh > > > --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
